JPH0541608Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a rice transplanter with a fertilization device that has three or more planting mechanisms and is equipped with a fertilization device for each row.

[Conventional technology]

In this type of rice transplanter with a fertilizer, the hopper for the fertilizer is arranged as described in, for example, Japanese Utility Model Application Publication No. 1984-
In the system shown in Publication No. 77318, two hoppers are arranged side by side on the outer lateral side of the aircraft body in the fore-and-aft direction of the aircraft body.

[Problem that the invention attempts to solve]

Therefore, in such a case, it is best to apply fertilizer from the hopper located at the rear to the inner planting rows, and apply fertilizer from the hopper located at the front to the outer planting rows. Although it is better because both the flow paths to the fertilization groove can be made the shortest, there is still an arrangement in which the intermediate position of the hopper in the longitudinal direction of the machine body is set as the fertilization position (grooving device) so that both flow paths are approximately equal. Even if the configuration is adopted,
Since each feeding mechanism is shifted forward and backward from the fertilization position, the flow path becomes longer than when the hopper (feeding mechanism) is located directly above the fertilization position, and clogging occurs in the flow path. I was in an easy situation.

An object of the present invention is to provide a hopper arrangement that minimizes clogging in the flow path, while also providing a rational support structure for the hopper.

[Means for solving problems]

The characteristic structure of the present invention is that a group of fertilizing hoppers is provided by placing a center hopper approximately in the center of the width of the machine body and left and right side hoppers placed laterally outward of the left and right propulsion wheels, and a fertilization hopper group that is pivotably supported by the propulsion wheels. The side hopper is attached to a support member constructed across the base end of the wheel transmission case and the fulcrum portion of the side float located on the lateral outer side of the wheel with respect to the respective aircraft bodies, and The effects are as follows.

[Effect]

○B From the characteristic configuration, by arranging hoppers along the width direction of the aircraft in correspondence with the multiple planting rows provided along the width direction of the aircraft,
By fertilizing the planting row located in the middle in the width direction of the aircraft from the center hopper, and applying fertilizer from the side hopper to the outer planting row located laterally outward from the propulsion wheels, In each case, the downstream paths can be made to have the same length and the shortest path.

○B Moreover, even if the center hopper supported by the fuselage is good, the side hoppers located on the lateral outward side of the propulsion wheels have side floats located near the propulsion wheels and wheel transmission, which are inevitable due to the characteristic configuration. By constructing a support member that effectively utilizes the fulcrum part with the case,
This support member supports the side hopper. Therefore, even if this support member is installed, it is better to have it on the fulcrum part of the wheel transmission case or on the side float, which is closer to the side hopper side, than when it is fixed to the transmission case, transmission case, etc. of the aircraft. This allows the installation length of the support member to be shortened, and the support member can be placed at a low position along the height of the float, so the installation position of the side hopper can be set as low as necessary, reducing the length of the flow path. You can shorten the length.

[Effect of idea]

As a result, we were able to reduce the length of the flow path to the minimum required length, suppress clogging of fertilizer in the flow path, and construct a rational support structure that corresponds to the installation position of the side hopper.

〔Example〕

A four-row walking type rice transplanter will be explained as an example of a rice transplanter equipped with a fertilization device. As shown in FIG. 1, the walking rice transplanter has an engine 1 installed at the front of the machine.
and a transmission case 3 that also serves as the fuselage frame and extends rearward from the transmission case 2, a center planting case 4 connected to the rear end of the transmission case 3, and a transmission case 4 that is connected to the rear end of the transmission case 3; The left and right side planting cases 6, 6 are transmission-connected via the left and right horizontal transmission cases, the seedling planting mechanism 7 attached to these planting cases 4, 6, and the seedling planting mechanism 7, which reciprocates horizontally to the left and right in conjunction with the planting operation. A sliding seedling tray 8, a wheel transmission case 10, 10 which is pivotally supported on the side of the transmission case 2 with propulsion wheels 9, 9 pivotally supported at the tip and capable of vertically swinging, arranged in front of the seedling tray 8. It is composed of a fertilizing device 11, a center float 12A and side floats 12B directed downwards, and a control handle 13 provided on the back of the seedling stand 8.

The fertilizer application device 11 will be explained in detail. As shown in FIGS. 1 to 3, the fertilizer applicator 11 includes a center hopper 14 that supplies fertilizer to the two central rows, and a center hopper 14 that supplies fertilizer to the two central rows.
The center hopper 14 is equipped with left and right side hoppers 15, 15 for supplying fertilizer to the rows, respectively, and the center hopper 14 is provided with feeding mechanisms 16, 16 for two rows, downflow pipes 17, 17, and furrowers 18, 18. In addition, each side hopper 15, 15 has 1
It is configured by providing a strip feeding mechanism 16, a downstream pipe 17, and a groove creator 18.

The mounting structure for these fertilizer application devices 11 will be explained. As shown in FIGS. 1 and 3, a fixed support shaft belonging to the transmission case 2 side is extended to the vertical swing axis position of the base end of the wheel transmission case 10 relative to the transmission case 2, and this The front end of a support member 20 that supports the side hopper 15 is fixed to a fixed support shaft. Below the seedling stand 8 are a pair of left and right handle support rods 13 that are fixedly connected and supported on the rear side of the center planting case 4.
A lateral support shaft 21 is installed on a and 13a via brackets 40 and 40 so as to be rotatable around its own axis, and this lateral support shaft 21 is attached to the planting depth adjustment lever 1.
9, it is configured to be integrally rotatable and fixed. Brackets 22 constituting rear fulcrums of the side floats 12B, 12B are attached to both ends of the horizontal support shaft 21 so as to be relatively swingable, and the rear end of the support member 20 is pivotally connected. In this way, the support member 20 installed approximately horizontally is positioned below the side hopper 15, and a single vertical support frame 23 is further erected from this support member 20. The bent portion at the upper end supports one side of the outer case 16A of the feeding mechanism 16, and the side hopper 15 is attached and fixed thereto.

On the other hand, for the center hopper 14, a cross-shaped plate frame 24 is installed upright from the transmission case 3 that connects the transmission case 2 and the center planting case 4. A mounting structure for the center hopper 14 is formed by supporting one side of the feeding cases 16A, 16A of the feeding mechanisms 16, 16 located on both sides. As described above, since the feeding cases 16A, 16A are supported by the support frames 23, 24 from only one side, sliding contact with the feeding rotors (not shown) provided in the feeding cases 16A, 16A can occur. The brush 39 can be provided on a side of the support frame 23 that is different from the side where the support frame 23 is present, and the brush 39 can be easily attached and detached.

Fertilizer application device 1 supported and fixed to the aircraft body as described above
1 has the following feeding drive system. Although not shown, the feeding mechanism 16 is connected to its case 16.
A feeding rotor for feeding fertilizer is provided in A, and a rotor shaft 25 for rotationally driving this feeding rotor extends from the case 16A toward the rear of the machine body. As shown in FIG. 3, a triangular drive member 2 is attached to the rotor shaft 25 on the side hopper 15 side.
6 is fixed, and the side seedling planting mechanism 7
Connecting rod 27 from the swing arm to the drive member 26
has been erected. Also, triangular drive members 26, 26 are similarly fixed to the two rotor shafts 25, 25 on the center hopper 14 side, and both drive members 26, 26 are integrally connected by one horizontal rod 28. and the one drive member 26
A connecting rod 27 is erected from a swinging arm of the central seedling planting mechanism 7 corresponding to the seedling planting mechanism 7. With the above structure, the rotor shaft 25 is driven forward and backward at a constant angle in accordance with the reciprocating rocking motion of the rocking arm, and is configured to feed out fertilizer.

Next, the rolling structure will be explained. Fourth
As shown in the figure, the center float 12A is configured to be capable of rolling operation around the longitudinal axis X of the fuselage body, and has auxiliary floats 29, 29 connected to both sides that can be integrally operated. A link mechanism 32 is extended from a frame 30 connecting the auxiliary float 29 and the center float 12A to a rolling control valve 31, and the left and right propulsion wheels 9, 9 are controlled by the rolling operation caused by ground pressure fluctuations.
It constitutes a rolling structure in which the seedling planting device 40 equipped with the seedling planting mechanism 7 maintains a constant posture on the ground by raising and lowering the seedling planting mechanism 7 on its back. The groove creator 18 is attached to the center float 12A, so that the depth of the fertilization groove does not change even when the center float 12A is rolled. In addition, a first overhanging portion 12a is provided on the front side of the center float 12A from the mounting position of the trencher 18, and a first overhanging portion 12a is provided laterally and outwardly, and the first overhanging portion 12a is configured to level the ground at the planned planting location. On the rear side from the mounting position of the groove creator 18, there is a second projecting portion 1 extending laterally and outwardly.
2b is provided, and the second overhang portion 12b is configured to bury the fertilizer in the groove after fertilization.

Next, the mounting structure of the preliminary seedling stand 33 will be described in detail. As shown in FIGS. 1 to 3, a ring-shaped fixed frame 34 is supported above the center hopper 14 and extends over the mission case 2 and the center planting case 4. Spare seedling stand 33 that slides on top
A main frame 35 is mounted. This main frame 35 includes a pair of front and rear arch-shaped frames 35A.
The front and back frames 35B, 35B connect the lower ends of the front and rear arm-shaped frames 35A. Attach them one by one to
It is configured to be able to slide back and forth on the fixed frame 33. Furthermore, on both lateral sides of the front and rear arch-shaped frames 35A, 35A, resin-made seedling holders 37 for placing preliminary pine seedlings are installed in upper and lower two stages, and these seedling holders 37 are attached to the side hopper 15.
Since it is located above the arch-shaped frame 35A, it is set in an inclined position so that it is located at a lower position toward the end where it is attached to the arch-shaped frame 35A. On the other hand, in response to this, the lid body 15A of the side hopper 15 can be swung open and closed upwards around a swing fulcrum axis Y provided on the lateral side surface of the side hopper 15 in the width direction of the machine body. The structure is such that an open state can be obtained. The spare seedling stand 33 configured as described above can be slid by pushing and pulling the annular handle 38 extending from the left and right arched frames 35A, 35A toward the control section, and the center hopper can be moved. When replenishing fertilizer to the center hopper 14, the center hopper 14 is moved to the front side of the machine, and the space above the opening/closing lid 14A of the center hopper 14 can be opened so as to be able to swing open sufficiently.

[Another example]

The support member 20 is not limited to the pipe-shaped member described above.

Note that although reference numerals are written in the claims section of the utility model registration for convenience of comparison with the drawings, the present invention is not limited to the structure of the attached drawings by such entry.

[Brief explanation of the drawing]

The drawings show an embodiment of the rice transplanter with a fertilization device according to the present invention, in which FIG. 1 is an overall side view, FIG. 2 is a front view showing the arrangement of the fertilization device and a spare seedling stand, and FIG. 3 is the fertilization device. A plan view showing the arrangement of and a spare seedling stand,
FIG. 4 is a perspective view showing the relationship between the center float and the rolling mechanism. 9... Propulsion wheel, 10... Wheel transmission case, 1
2B... Side float, 14... Center hopper, 15... Side hopper, 20... Support member.

Claims (1)

[Scope of utility model registration request] A center hopper 14 is located approximately in the center of the width of the aircraft, and left and right side hoppers 15, 1 are located outwardly of the left and right propulsion wheels 9.
5 are respectively arranged to provide a group of fertilization hoppers, and a base end portion of a wheel transmission case 10 that pivots the propulsion wheel 9 and is vertically swingable, and a side float 12B located on the lateral outer side of the wheel 9. A rice transplanter with a fertilization device, in which the side hopper 15 is attached to a support member 20 constructed over the fulcrum portion of each machine body.